[Ips-dhfpr] IPS Daily HF Prop Report - 20 August 11

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 20/2330Z AUGUST 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (20 AUGUST) 
Date   T index  Conditions    
20 Aug    41    Fair-Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 15% during local day,
      Depressed by 25% during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Depressed by 20% during local day,
      Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Mostly near predicted monthly values.

PCA Event : No event.

Predicted Monthly T index for August:  59
2. FORECAST (21 AUGUST - 23 AUGUST)
Date   T index  Conditions       MUFs                              
21 Aug    50    Fair-Normal      Depressed 5 to 15%/near predicted 
                                 monthly values
22 Aug    55    Normal           Near predicted monthly values    
23 Aug    55    Normal           Near predicted monthly values   
COMMENT: Mild depressions were observed over northern Australian 
regions at times during the past 24 hours. Slight depressions 
are expected at times over the next 24 hours primarily for northern 
Australian to equatorial regions otherwise MUFs are expected 
to be mostly near predicted monthly values. Some periods of Spread-F 
and Sporadic-E conditions were observed during the past 24 hours 
which may have degraded HF conditions at times. Further isolated 
periods of Spread-F and Sporadic-E are expected over the next 
24 hours which may result in degraded HF conditions at times.
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For an explanation of some of the terms in this report, go to
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

IPS Radio and Space Services        email: asfc at ips.gov.au
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